package com.itheima.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.common.R;
import com.itheima.dto.SetmealDto;
import com.itheima.entity.Category;
import com.itheima.entity.Setmeal;
import com.itheima.service.CategoryService;
import com.itheima.service.SetmealDishService;
import com.itheima.service.SetmealSevice;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
public class SetmealController {


    @Autowired
    private SetmealSevice setmealSevice;

    @Autowired
    CategoryService categoryService;

    @Autowired
    private SetmealDishService setmealDishService;

    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping        //json格式的 需要在参数里面加入@RequestBody注解
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        log.info("套餐信息:{},", setmealDto);

        setmealSevice.saveWithDish(setmealDto);

        return R.success("新增套餐成功");
    }

    /**
     * 套餐分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        //分页构造器对象
        Page<Setmeal> pageinfo = new Page<>(page, pageSize);
        Page<SetmealDto> dtoPage = new Page<>();


        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加查询条件，根据name 进行like 模糊查询     参数1.判断不为空，2.成立走第二个，3.传递具体的值
        queryWrapper.like(name != null, Setmeal::getName, name);
        //添加排序条件 根据更新时间降序排列
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealSevice.page(pageinfo, queryWrapper);

        //对象拷贝       BeanUtils.copyProperties三个参数：1.从哪里拷贝，2.拷贝到哪里去 3.哪个字段不需要拷贝
        BeanUtils.copyProperties(pageinfo, dtoPage, "records");
        List<Setmeal> records = pageinfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item, setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     * 删除套餐
     *
     * @param ids
     * @return
     */
    @DeleteMapping      //删除 批量删除 参数里面需要加入@RequestParam 注解
    public R<String> delete(@RequestParam List<Long> ids) {
        log.info("ids:{}", ids);
        setmealSevice.removeWithDish(ids);
        return R.success("套餐数据删除成功");
    }
}
